CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NCVE-2026-42508
Critical (9.1) in golang crypto. EPSS 6.9% chance of exploitation in the next 30 days. Fixed in golang.org/x/crypto 0.52.0.
Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.
Severity
- EPSS
- 6.9% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)
- CWE
- CWE-295
- Published
- Modified
- Record from
- the NVD, synced
Affected
- golang:crypto
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5cgq-3rg8-m6cv | Go | golang.org/x/crypto | <0.52.0 | 0.52.0 |
| GO-2026-5021 | Go | golang.org/x/crypto | <0.52.0 | 0.52.0 |